How do I tighten the jack on my guitar? Do I just turn i clockwise or will that rip the wires on the inside or something?
Do NOT just turn it to the right. If the wire twists up youll rip the wires, and you DO NOT want that happening.

Unscrew the 2 screws holding the jack, then hold the jack itself, and tighten the washer making sure the wires get don't twist or get caught.